Global Patent Index - EP 2386724 A3

EP 2386724 A3 20131218 - Rotary machine with a labyrinth seal with curved teeth

Title (en)

Rotary machine with a labyrinth seal with curved teeth

Title (de)

Drehmaschine mit einer Labyrinthdichtung mit gekrümmten Schneiden

Title (fr)

Machine rotative à joint labyrinthe avec léchettes incurvées

Publication

EP 2386724 A3 20131218 (EN)

Application

EP 11165069 A 20110506

Priority

US 77786810 A 20100511

Abstract (en)

[origin: EP2386724A2] In one embodiment, a system includes a rotary machine (12) and a packing seal (62) that is disposed between rotary and stationary components of the rotary machine. The packing seal (62) includes a pair of seal lands (80) spaced axially (66) along the rotary component and a seal tooth (74) disposed at an axial position between the pair of seal lands (80). At least one seal land (80) of the pair of seal lands (80) or the seal tooth (74) includes a curved flow-facing side (90, 92) and is slanted toward the curved flow-facing side (90, 92).

IPC 8 full level

F01D 11/02 (2006.01); F16J 15/447 (2006.01)

CPC (source: EP US)

F01D 11/001 (2013.01 - EP US); F01D 11/02 (2013.01 - EP US); F16J 15/4472 (2013.01 - EP US); F05D 2250/71 (2013.01 - EP US); F05D 2250/711 (2013.01 - EP US); F05D 2250/712 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2386724 A2 20111116; EP 2386724 A3 20131218; CN 102322529 A 20120118; JP 2011237033 A 20111124; US 2011280715 A1 20111117

DOCDB simple family (application)

EP 11165069 A 20110506; CN 201110134082 A 20110511; JP 2011103931 A 20110509; US 77786810 A 20100511